Create your API key, deposit native currency into the treasury and track balance and cashback. No form, no waiting: sign in with your Google account and the key is issued instantly.
One deposit covers every EVM network
Your users transact without gas (EIP-7702)
Part of what you pay comes back as credit
Networks
One deposit, every network.
You deposit native currency once into the treasury and the same balance pays gas on every supported EVM network. No per-network balance to manage.
Supported networks
BSC (BNB) BSC
POLYGON (POL) POLYGON
BASE (ETH) BASE
ARBITRUM (ETH) ARBITRUM
ETHEREUM (ETH) ETHEREUM
Deposited balance
—
Cashback accrued
—
Active keys
—
Your API keys
Your key — copy it now.
It will not be shown again. Keep it: it is what credits your deposits. If you lose it, revoke and create another.
Deposit balance native currency
Send the network's native currency (BNB, POL, ETH) to the treasury address below and report the transaction hash. The balance is credited after on-chain confirmation.
Treasury address
Create a key to see the deposit address.
How to integrate 2 minutes
1Install the package:
npm install @vkx/gas
2Set the key (in the environment):
export VKX_GAS_KEY=vkx_gas_...
3Sponsor your user's operation:
await gas.prepare({ network: 'BSC', userOp })
4Integrating into your system? Paste this prompt into your AI assistant (ChatGPT, Claude, Cursor) and it integrates it for you: